JPH10315832A - Operating mechanism for releasing lock of spring-up seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the appearance of a side rail by pivotally fitting one end of a U-shaped operating lever to a to plate of a vertex part of an upper rail to be horizontally rotatable and integrally providing the other end thereof with an arm, and inserting an end of a connecting rod of a release plate into a long hole of the arm. SOLUTION: One end of an operating lever 26 is pivotally fitted to a top plate 70 in the horizontal direction by a pivotal support pin 26A, and an arm 27 provided in the other end of the lever 26 is energized by a spring 28 stretched between the top plate 70 and the arm 27. The arm 27 is provided with a long hole 27A in the rotating direction of the operating lever 26, and a bent part 24 of a connecting rod 24 connected to a release plate 2 is inserted into the long hole 24A. When the operating lever 27 so turned for operation, the arm 27 side is turned around the pivotal support pin 26A, and the housed arm 27 is projected by the spring 28 inside of the top plate 70. When the operating lever 26 is turned more, the connecting rod 24 and the release plate 2 are slid, and the lock is released. After concluding the turning, the operating lever 26 is housed in the top plate 70 by the spring 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for a flip-up seat such as a second seat or a third seat mounted on an automobile called a van or a one-box car.

[0002]

2. Description of the Related Art Conventionally, when a seat is not in use, the seat cushion is lifted forward or sideward around one bottom of the seat cushion when the seat is not in use, so that the seat cushion can be installed on a vehicle floor. There are things that can be used effectively in such spaces.

[0003] The seat is mounted on a vehicle floor so as to be movable in the front-rear direction by a slide rail for adjusting the front-back position of the seat. The seat is attached to the upper rail by engaging a striker provided at the bottom of the seat cushion with a hook provided on the upper rail side of the slide rail.

By the way, when the seat is lifted up, the slide rail remains on the vehicle floor side and the upper rail is exposed to the outside. The locked state of the striker by the hook can be operated by operating an operation lever provided on the seat side. , So that it can be unlocked.

[0005]

Accordingly, it is necessary to provide a lock releasing member such as an operation lever inside the seat, and there is a problem in that workability such as mounting of the lock releasing member is poor.

[0006] On the other hand, when the unlocking operation member of the jumping sheet is provided on the slide rail side, when the operating member jumps up the sheet, it is exposed to the outside and the appearance quality of the slide rail is impaired.

Accordingly, an object of the present invention is to improve the appearance quality of a slide rail in a slide rail having an operation member for unlocking a jumping sheet on the slide rail side.

[0008]

In order to achieve the above object, according to the present invention, the operating lever is formed in a substantially U-shape, and one end of the operating lever is attached to the tip of a horizontal top plate having the top of the upper rail. An arm having a long hole in the other end, which is rotatably mounted in the horizontal direction, and an arm having a long hole long in the rotation direction of the operation lever, which is disposed integrally with the arm so as to be able to protrude and retract into the top plate. The end of a connecting rod for connecting the release plate is inserted into the arm, and the arm is urged by the elastic force of a spring in a direction to be stored in the top plate.

Therefore, since the operating lever is always urged in the storing direction by the elastic force of the spring, it is stored immediately after the operation.

[0010] Further, by disposing the operation lever on the same plane as the top plate of the upper rail, the operation lever does not protrude above the top plate.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In the figure, reference numeral (1) denotes a hook rotatably mounted on an upper rail (7) in a vertical direction by a rotation shaft (51). The hook (1) is a leg (90) provided on the bottom of a seat cushion (SC). It is attached so that the striker (9) which is integral with the engagement may be engaged.

As shown in FIG. 5, the seat cushion (SC) can be jumped up to the wall (W) of the vehicle body.
Is slidably fitted to the slide rail (R) on the side. On the other hand, the hook (1) for engaging the striker (9) on the seat cushion (SC) side is attached to the upper rail (7) of the slide rail provided on the vehicle floor (F) side as described above. (SB) in the figure indicates a seat back.

The striker (9) is engaged with the hook (1) while being inserted into an engaging hole (71) opened in the top plate (70) of the upper rail (7).

The locking mechanism of the seat cushion (SC) shown in the figure includes the hook (1), a movable piece (3) pressed by the lowering of the striker (9) and rotating the hook (1) in the locking direction, (1) and a lock piece (4) which comes into contact with (1).

In the drawing, reference numeral (53) denotes a stop shaft to which one end of the movable piece (3) is fixed and the lock (4) is pivotally mounted on the lock shaft (53). ) Is latched to urge the tip of the movable piece (3) upward. Reference numeral (52) denotes a support piece on which a stop shaft (53) and a rotary shaft (51) are installed. The front and rear ends are fastened to the bent portion of the upper rail (7).

Accordingly, when the movable piece (3) is pressed downward by the striker (9), the hook (1) connected to the distal end of the movable piece (3) rises, as shown in FIG. (9) hook and seat cushion (S
C) is locked to the upper rail (7).

The upper rail (7) has a lower portion slidably fitted to a lower rail (8) fixed to the vehicle floor, and a top plate (70) is horizontally welded to the top. (7
3) indicates a roller, and (77) indicates a projection to be welded to the top plate (70).

The top plate (70) is provided with an insertion hole (71) into which the striker (9) is inserted, and has a substantially U-shape at the tip thereof which constitutes an operation mechanism for unlocking according to the present invention. The operation lever (26) is disposed on the same plane as the top plate (70).

The illustrated unlocking mechanism includes a release plate (2) that pulls a pin (10) provided on the hook (1) by sliding, and rotates the hook (1) in the unlocking direction. And (2) an operation mechanism for sliding.

In the figure, reference numeral (20) denotes a hook portion provided on the release plate (2), which is attached so as to engage with the pin (10) of the hook (1). The release plate (2) is connected to the lock piece (4), and the lock (4) rotates in a direction away from the hook (1) by the slide of the release plate (2).

The operating mechanism includes an operating lever (26) whose one end is rotatably mounted on a top plate (70) in a horizontal direction by a pivot pin (26A), and is integrated with the other end of the operating lever (26). An arm (27) made of a provided plate and a spring (28) made of a tension coil spring stretched between the arm (27) and a projection provided on the top plate (70).

The operating lever (26) is a pivot pin (26A)
The arm (27) rotates about the rotation center, and accordingly,
The arm (27) stored in the top plate (70) by the elastic force of the spring (28) protrudes outward as shown in FIG.

The arm (27) has an operation lever (2).
A long hole (27A) long in the rotation direction of 6) is opened, and a bent portion (24A) of a connecting rod (24) connected to the release plate (2) is inserted into the long hole (27A). ing.

Therefore, in the state shown in FIG.
When the rotation operation of 6) is performed, the connecting rod (24) is pulled, the release plate (2) slides, and the hook (1) is moved.
, The engagement state (locked state) of the striker (9) is released.

When the turning operation by the operation lever (26) is completed, the operation lever (26) is moved to the arm (27).
2 is returned to the original state shown in FIG. That is, the arm (27) is stored in the inner surface of the top plate (70).

The connecting rod (24) has a guide portion (7) partially bent on the inner surface side of the top plate (70).
3), a connecting end (24B) is connected to a mounting portion (23) integral with the release plate (2), and a spring (25) is stretched over the mounting portion (23). With the elasticity of the spring (25), the hook (2) of the release plate (2)
0) is slid so as to engage the pin (10) of the hook (1). In the drawing, reference numeral (21) denotes a slide portion of the release plate (2), which is attached so as to slide along the inner surface of the top plate (70). (72) is the top plate (7
The slide guide of the release plate (2) protruding from the inner surface of (0) is shown.

[0027]

According to the present invention, the operation lever always returns to the predetermined position in the locked state and the unlocked state of the jumping sheet with respect to the slide rail. Therefore, the appearance quality of the slide rail is not impaired by the operation lever provided on the slide rail side.

Further, since the operation lever is mounted on the slide rail side, the workability of mounting on the slide rail side is improved.

In addition, the appearance quality of the slide rail can be further improved by mounting the operation lever on the same plane as the top plate of the upper rail. In addition, since the operation lever does not protrude upward from the slide rail, it does not become an obstacle when a load is placed.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a slide rail having a mechanism according to the present invention.

FIG. 2 is a plan view showing a state in which a top plate is turned upside down.

FIG. 3 is a partially cutaway sectional view in a locked state.

FIG. 4 is an explanatory diagram illustrating movement of an operation lever.

FIG. 5 is a partially cutaway perspective view of a flip-up sheet provided with the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hook 2 Release plate 7 Upper rail 8 Lower rail 9 Striker 26 Operation lever 27 Arm 28 Spring 70 Top plate

Claims (2)

[Claims] An upper rail is slidably fitted to a lower rail on a vehicle floor side, a release plate is slidably provided on the upper rail, and a hook for engaging a striker on a seat side is connected to the release plate. The operation lever is formed in a substantially U-shape, and one end of the operation lever is pivotally mounted on a top of a horizontal top plate having a top portion of an upper rail so as to be rotatable in a horizontal direction. At the other end, an arm having an elongated hole long in the rotation direction of the operation lever is integrally provided, and is disposed so as to be able to protrude and retract within the top plate, and an end of a connecting rod for connecting the release plate to the elongated hole of the arm. An operating mechanism for unlocking the flip-up seat, characterized in that the arm is urged by a spring force in a direction in which the arm is inserted into the top plate and the arm is stored in the top plate. 2. The operating mechanism for unlocking a flip-up seat according to claim 1, wherein the operating lever is disposed on the same plane as the top plate.